Reads all most 10 digit microchips, and will only display if a 9 digit Avid Friendchip is detected (not display a number). No batteries needed. Comes with rechargeable USB lead that can be used to charge in the wall or in a car 12V USB charger. Works with Windows 98 or later software. NOT COMPATIBLE WITH MAC. Carrying Case sold separately Does not read AKC microchips Halo Microchip Scanner The Halo Microchip Scanner is: Cost effective, so you can afford to have a scanner in each consulting room. Halo will immediately alert the operator if the microchip being scanned belongs to an animal that has been reported missing. No batteries needed. Comes with rechargable USB lead that can be used to charge in the wall or in a car 12V USB charger. Ergonomic design is small, lightweight, and robust. Reads all 15 digit ISO and FDX-A (FECAVA) 10 digit microchips, and will display if the 9 digit Avid Friendchip is detected. Features an effective read range the entire outer edge is the scanning area so that a large scanning area is covered in one go. Rechargeable battery lasts for up to 800 scans Works with Windows 98 or later software. NOT COMPATIBLE WITH MAC.